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Finding the Third Proportional to 15,656 and 34,240

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Solution

The third proportional to 15,656 and 34,240 is: 74,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656 : 34,240 = 34,240 : x
  2. Step 2: Convert to fraction form
    15,656/34,240 = 34,240/x
  3. Step 3: Cross multiply
    15,656x = 34,240 × 34,240
  4. Step 4: Simplify right side
    15,656x = 1,172,377,600
  5. Step 5: Solve for x
    x = 1,172,377,600/15,656
  6. Step 6: Final answer
    x = 74,883.60

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.